SPORTY'S E6B

[Pages:24]SPORTY'S E6B ELECTRONIC FLIGHT COMPUTER SOFTWARE

Sporty's E6B Flight Computer software is designed to perform 23 aviation functions and 14 standard conversions, and includes timer and clock functions. This manual is designed to offer an introduction to the operation of the E6B software. For each calculation, a sample problem has been given.

We hope that you enjoy your Sporty's E6B Flight Computer software. Its use has been made easy through direct path menu selection and calculation prompting. As you will soon learn, it is one of the most useful and versatile of all aviation computers.

? 2008 by Sportsman's Market, Inc. Version 08A

CONTENTS

Display Screens ................................................................................ 2 Aviation Functions............................................................................. 2 Prompts and Labels ........................................................................... 3 Special Function Keys ........................................................................ 4 Conversions ...................................................................................... 4 Clocks and Timer ............................................................................... 5 Adding and Subtracting Time .............................................................. 5 Percent MAC (%MAC) ......................................................................... 6 Pressure and Density Altitude (P/D-Alt) .............................................. 6 Flight Plan True Airspeed (PLAN TAS).................................................. 7 Heading and Groundspeed (HDG/GS) .................................................... 7 Leg Time (LEG TIME).......................................................................... 8 Fuel Required (FUEL REQ) ................................................................... 8 Crosswind, Headwind and Tailwind (X/H-Wind) ...................................... 8 Actual True Airspeed (ACT TAS) ......................................................... 9 Wind Speed and Direction (WIND)........................................................ 9 Groundspeed (GS).............................................................................10 Fuel Per Hour (FPH) ..........................................................................10 Flight Plan Mach Number (PLAN M#) ...................................................10 Required True Airspeed (REQ TAS) .....................................................11 Required Calibrated Airspeed (REQ CAS) .............................................11 Distance Flown (DIST FLN) ................................................................12 Endurance (ENDUR)...........................................................................12 Actual Mach Number (ACT M#)...........................................................12 Required Rate of Climb (RteOClimb) ...................................................13 Required Rate of Descent (Req/Dscn) .................................................13 Specific Range (SPRNG).....................................................................14 Top of Descent (T-DCN) ....................................................................14 Weight/ARM (WT/ARM) .....................................................................15 Weight/Moment (WT/MOM)................................................................16 Appendix A: Sample Problems .......................................................17-20 Weight and Measure Conversions........................................................20 Troubleshooting and Information........................................................21

Page 1

DISPLAY SCREEN

E6B PalmVersion

WWTT//AARRMM PW-DT//AALRTM LWEGT/TAIMREM AWCTT/TAARSM WFTP/AHRM RWEQT/CAARSM WACTT/AMR#M Req/Dscn

WT/MOM PLAN TAS FUEL REQ

WIND PLAN M# DIST FLN Clk/Tmr SPRng

W%TM/AACRM HWDTG//AGRSM XW/HT-/WAIRNMD WGT/SARM RWEQT/TAARSM WENTD/UARRM Rte O Climb

T-DCN

The figure above shows the main menu. To choose a function, press the appropriate button with the stylus pen. The display will change to the function showing the values to be entered at the top, the calculated values shown below the line and the entry keypad (shown below) at the bottom of the screen.

789 +

4 5 6 - +/-

123X:

0

.

=

? Ent C

Timer Conv Main

Your E6B software performs all of the basic arithmetic functions with the keys shown above (addition, subtraction, multiplication, and division). These functions, as well as any conversions, can be performed at any time while performing an aviation function. The E6B software will display up to eight digits of the answer. The = button should be used to compute any arithmetic function.

Page 2

AVIATION FUNCTIONS

The aviation functions are displayed on the main menu. Your E6B software will automatically save computed values from one aviation function to another. To override this option, key in the new value when prompted. The E6B software will save true airspeed, groundspeed, time, and fuel per hour calculations. It will also save cumulative weight and balance totals.

WT:

Weight

PROMPTS AND LABELS

I?C:

Indicated Temperature in Celsius

W SPD: Wind Speed

MOM:

Moment

RWY:

Runway

CG:

Center of Gravity

X-WIND: Crosswind

GS:

Groundspeed

H-WIND: Headwind

HDG:

Heading

W DIR: Wind Direction

P ALT: Pressure Altitude

ARM:

Arm

T?C:

Temperature in Celsius

CAS:

Calibrated Airspeed

CRS:

Course

TAS:

True Airspeed

RF:

Reduction Factor

MACH#: Mach Number

GW:

Gross Weight

D ALT: Density Altitude or Desired Altitude DIST:

Distance

%MAC: Percent Mean Aerodynamic Chord HOME: Home Time Clock Label

FPH:

Fuel Per Hour

I ALT:

Indicated Altitude

FUEL:

Fuel

TIME:

Time

MAC:

Mean Aerodynamic Chord

LOCAL: Local Time Clock Label

?C:

Temperature in Celsius Label

FEET:

Feet

Page 3

NAUT: Nautical

CONV: Conversion Function

RGR:

Required Gradient Rate

MROC: Minimum Rate of Climb

CRALT: Crossing Altitude

FXDIS: Fix Distance

RQ/DN: Required Descent Rate

SPRNG: Specific Range

RATE:

Descent Rate

T-DSC: Top of Descent

LEMAC: Leading Edge Mean Aerodynamic Chord

ZULU:

Coordinated Universal Time Clock Label

BARO: Altimeter Setting in Inches in Mercury (Barometer)

Clk/Tmr

Main Conv Timer Ent =

C

+/-

SPECIAL FUNCTION KEYS Displays clocks and timer. Returns to main menu. Converts the value between units of measurement. Imports current value from timer onto current number entry line. Accepts the entered number. Totals calculator functions. Deletes last digit entered.

Clears current number entry line. Moves cursor between number entry lines. Changes a positive value to a negative and a negative value to a positive. A negative number will be denoted with a minus sign in front of the number.

Page 4

CONVERSIONS

Conversions may be made at any time during any function. For example, if a calculation prompts for the temperature in Celsius and only 68? Fahrenheit is available, enter 68 as the value, press Conv , press

F

C . 20.00 will be displayed on the top line. Press Return to accept this value and return

to the calculation. Conversions can be calculated for:

Nautical Miles

Statute Miles

Nautical Miles

Statute Miles

Nautical Miles

Kilometers

Kilometers

Statute Miles

Feet

Meters

Meters

Feet

Pounds

Kilograms

Kilograms

Pounds

Gallons

Liters

Liters

Gallons

Fahrenheit

Celsius

Celsius

Fahrenheit

Hours

Hours, Minutes, Seconds

Hours, Minutes, Seconds

Hours

There are no conversion keys for kilometers to statute miles or statute miles to kilometers. To convert from kilometers to statute miles, first convert kilometers to nautical miles, then nautical miles to statute miles. To convert statute miles to kilometers, first convert from statute miles to nautical miles, then nautical miles to kilometers.

CLOCKS AND TIMER

The E6B software has three clocks that run simultaneously. They are labeled as Zulu, Home and Local. The independent timer is below the clocks. To display, press Clk/Tmr .

To set 11:25:00 on Zulu clock, tap under the hour position until 11 is displayed. Tap under the minutes position until 25 is displayed. Press Set to start the clock. This also synchronizes the minutes and seconds of the Home and Local clocks with the Zulu clock.

Set the hours for the Home and Local clocks using , then synchronize the minutes and seconds by tapping Set on the Zulu clock.

A time can be entered in the timer by using . To activate the timer, tap Up to start the timer counting up or tap Down to start counting down. Stop pauses the timer. Reset returns the timer to 0:00:00. An indicator to the right of the timer indicates if the timer is counting up ( ) or counting down ( ). indicates the timer is stopped.

Next to this indicator is a + or -. When the timer is counting down and reaches 0:00:00, this changes from + to - to show the timer is now counting how much time has passed since reaching zero. The count down

timer can be used as a reminder when to switch fuel tanks, to fly a non-precision approach (LEG TIME function) or measuring groundspeed from one checkpoint to another checkpoint (GS).

Any function requiring time to be entered, the timer may be used by tapping Timer , Ent when prompted for time.

Page 5

ADDING AND SUBTRACTING TIME

Time can be entered into the E6B software in either hours or hours, minutes and seconds. To enter in hours, simply key in a normal decimal number. For example, entering 2.75 hours is the same as entering 02:45:00.

To key in time in hours, minutes and seconds mode, the : must be used. For example, to enter 3 hours, 14 minutes and 25 seconds, tap 3, : , 1, 4, : , 2, 5. The display will read 3:14:25.

To key in 5 minutes even, the leading zeroes must be used: tap 0, : , 0, 5. The display will read 0:05.

Time can be added in either mode; times from different modes can also be added without converting. For example, to add 3.45 hours and 2:45:00 :

Enter in 3.45 and tap +

Enter in 2:45 and tap = The diplay will read 6.2. Answers will always appear in hours. Use the conversion function H change to hours, minutes and seconds. The display will read 6:12:00.

HMS to

PERCENT MAC (%MAC)

This function computes the center of gravity in terms of percentage of mean aerodynamic chord, or the percentage distance of the center of gravity from the average distance between the leading edge to the trailing edge of the wing. In this example, leading edge mean aerodynamic chord (LEMAC) is 22.29, the CG is 37.27, and the mean aerodynamic chord (MAC) is 61.4.

Tap WT%/MAARCM from the main menu. The display will prompt for LEMAC. Key in 22.29 and press Ent .

The display will prompt for CG. Key in 37.27 and press Ent .

The display will prompt for MAC. Key in 61.4 and press Ent .

The display will read:

Page 6

LEMAC CG MAC %MAC

22.29 37.27 61.4 24.4

The total for %MAC should be checked against the aircraft's approved operating limits.

______________________________________________________________________________

PRESSURE AND DENSITY ALTITUDE (P-D/ALT)

This function will compute the pressure and density altitude given the indicated altitude, barometric pressure (altimeter setting in inches of Mercury), and temperature in Celsius. In this example, indicated altitude is 10,000 feet, the barometer is 29.94 inches, and the temperature is 5?C.

Tap WP-TD//AARLMT from the main menu. The display will prompt for IAlt. Key in 10000 and press Ent . The display will prompt for BARO. Key in 29.94 and press Ent . The display will prompt for T?C. Key in 5 and press Ent .

The display will read:

IAlt BARO T?C PAlt DAlt

10000 29.94 5 9980 11088

FLIGHT PLAN TRUE AIRSPEED (PLAN TAS)

This function is used to calculate true airspeed for preflight planning. It will compute the density altitude, mach number and true airspeed in knots, given the pressure altitude, temperature, and calibrated airspeed in knots. In this example, pressure altitude is 10,000 feet, temperature is 2?C, and CAS is 200 knots.

Tap PLAN TAS from the main menu. The display will prompt for PAlt. Key in 10000 and press Ent .

The display will prompt for T?C. Key in 2 and press Ent .

Page 7

The display will prompt for CAS. Key in 200 and press Ent .

The display will read:

PAlt T?C CAS DAlt Mach# TAS

10000 2 200 10770 0.36 234.7

______________________________________________________________________________

HEADING AND GROUNDSPEED (HDG/GS)

This function will compute heading and groundspeed given wind direction, wind speed, course, and true airspeed. In this example, the wind is from 270? at 20, course is 180?, and true airspeed is 185.

Tap WHTD/GA/RGMS from main menu. The display will prompt for W D i r . Key in 270 and press Ent .

The display will prompt for W S p d . Key in 20 and press Ent .

The display will prompt for C R S . Key in 180 and press Ent .

The display will prompt for TAS. Key in 185 and press Ent .

The display will read:

WDir WSpd CRS TAS HDG GS

270 20 180 185 186.2 183.9

LEG TIME (LEG TIME)

This function computes the time required to fly a particular distance given distance and groundspeed. In this example, distance is 25 and groundspeed is 185.

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